Energy Converter

Convert between chemical, electrical and physical energy units.

Energy
6
Printable Chart
Related Conversions
1 MJ to GJ 10 MJ to GJ 50 MJ to GJ 250 MJ to GJ 500 MJ to GJ 2,500 MJ to GJ 25,000 MJ to GJ 45,000 MJ to GJ 55,000 MJ to GJ 60,000 MJ to GJ 80,000 MJ to GJ 1,000,000 MJ to GJ
Reverse Conversions
1 GJ to MJ 5 GJ to MJ 10 GJ to MJ 25 GJ to MJ 100 GJ to MJ 1,000 GJ to MJ 5,000 GJ to MJ 25,000 GJ to MJ 40,000 GJ to MJ 45,000 GJ to MJ 80,000 GJ to MJ 500,000 GJ to MJ
More Energy Conversions
1 MJ to BTU 100 J to cal 1 GJ to kWh 2 GJ to MJ 2 MJ to BTU 100 kJ to kcal 1 MJ to kWh 10,000 J to kJ 10 BTU to J

Trending Now

Days Since Age Calculator 30 PSI to kPa Days Until Christmas Days Until New Year Percentage Calculator 0 °F to °C 5 miles to km 20 knots to mph Days Until Thanksgiving

Recent Tools

Popular Conversions

Kilowatt-Hours to Megajoules Megajoules to Kilowatt-Hours Joules to Calories Kilocalories to Kilojoules British Thermal Units to Joules Watt-Hours to Joules

Common Benchmarks

Match stick 1 kJ
Gasoline liter 34 MJ
1 kWh 3.6 MJ
Food calorie 4184 J
Laptop full charge 200 kJ
Microwave 10 minutes 0.17 kWh

Formula

GJ = MJ × 0.001

Example

Example: convert 50000 megajoules to gigajoules.

50000 MJ = 50 GJ

Conversion table

megajoules (MJ) gigajoules (GJ)
1 MJ 0.001 GJ
2 MJ 0.002 GJ
5 MJ 0.005 GJ
10 MJ 0.01 GJ
20 MJ 0.02 GJ
50 MJ 0.05 GJ
100 MJ 0.1 GJ

Explanation

These are both units.

How to convert megajoules to gigajoules

  1. Start with the value in megajoules (MJ).
  2. Multiply it by 0.001.
  3. The result is the measurement in gigajoules (GJ).

Example: 50000 MJ → 50 GJ

Frequently Asked Questions

How much is 50000 megajoules in gigajoules?

50000 megajoules equals 50 gigajoules.

How many gigajoules is 1 megajoule?

1 megajoule equals 0.001 gigajoules.

How many megajoules is 1 gigajoule?

1 gigajoule equals 1000 megajoules.

What is the difference between megajoules and gigajoules?

Both measure energy in SI. The main difference is usually scale: some units are convenient for smaller values, while others are used to express larger values more practically.

Where are megajoules and gigajoules used?

They are used in physics and engineering to measure work, energy, and heat; the most practical unit depends on the magnitude.

Why does 1 megajoule equal 0.001 gigajoules?

Because the units are defined with a fixed relationship. To convert megajoules to gigajoules, multiply by that factor.